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2 Sheets-Sheet 1.

(No Model.)

W. H. CLOUD.

LIFTING AND FORGE PUMP.

Patented May 9, 1882.

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N4 PETERS, PhohrLilbogmphen wnhingmn, D. c.

(No Model.) I Z'Sheets-Sheet 2.

W. H; CLOUD.

LIFTING AND FORGE PUMP.

Patented MayQ, 1882.

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N PETERS, Pmwuim n hw. Washington. D. c,

U IT STATES PATENT Farce.

WVILDIAM H. CLOUD, OF DETROIT, MICHIGAN, ASSIGNOR, BY Mnsnnassren-MENTS, OF ONEHALF TO WM. H. JACKSON, OF SAME PLACE.

VLIFTING AND FORCE PUMP.

SPECIFICATION forming part of Letters Patent No. 257,473, dated May9,1882.

Application filed April 21, 1881. Renewed April 8, 1852. (No model.)

To all whom it may concern:

Be it known that I, WILLIAM H. GLoUD, of Detroit, in the county of Wayneand State of Michigan, have invented an Improvement in Lifting and ForcePumps, of which the following is a specification.

The nature of my invention relates to certain new and usefulimprovements in that class ofpumps known as force-pumps, and theinvention consists in the construction and arrangement of parts, as morefully hereinafter described.

Figure 1 is a vertical central longitudinal section. Fig.2 is a planwith the top and up- 1 per valve-chamber removed. Fig. 3 is a verticalcentral cross-section on the line-main Fig. 2. Fig. 4 is a top plan.

In the accompanying drawings, which form a part of this specification, Arepresents a zo pump-barrel of nearly rectangular form, open on the topside, and provided with valves a and b, seated in the bottom of saidbarrel. By the-means of these valves and openings upon which they areseated a communication is had 2 between said barrel and a water-way, B,in the base of the pump, and into which water is admitted through thesuction-pipe O. The pumpbarrel at one end is cast with an annularflange, c, to which is bolted a head, (I, with which is en- 0 gaged aplug and stuiiing-box, 6, through which the piston-rod D has itsreciprocating motion, as in the ordinary construction of steam-errgines. The opposite end of this barrel is cast solid, as shown, inwhichparticular it differs 3 5 from other pumps of a smilar character,which are provided with .a removable head, by means of which access isobtained to the interior of the barrel at that end. This barrel is alsoprovided with a diaphragm, E, through the center of which is a roundhole, into which is fitted a stuffing-box, F, through which the hollowpiston G, which is secured to the piston-rod D, has a reciprocatingmotion. This diaphragm divides the barrel into two chambers, H and 5 H,between which there is no communication when the piston and itsstuffing-box is in place. It will he noticed that the piston is a shell,and it is designed, in order not to wear the stuffingbox unequally, thatits weight shall be about equal to the weight of water which it woulddisplace, and that the ends ofthis piston are beveled to enable it to beforced with less power than though the ends were flat. Channels It maybe out around the inner face of the stuffing-box F to provide fora waterpacking of the piston, thereby enabling the pump to be used with hotwater, which could not be done were rubber or other elastic ringsemployed for the purpose.

Iis a water-chamber and valve-chambercom- 6o bined, with openings '5 t"in its bottom opening into the pump-barrel, of which said water andvalve chamber forms a cap. It k are the valves which alternately closeand disclose the openings t i. There are other openings, in m, in thebottom of this chamber communicating with the exit-openings n a, one ofeach being on either side of the trunk, and to either of which maybeattached a suitable pipe or hose.

If a constant flow of water is desired, one of these exit-openin gsshould be closed by a plug, as shown.

J is a cap or cover to the valve-chamber, surmounted by the air-chamberL, of the usual construction. The joints between the pumpbarrel A andthe valve-chamber I and between the latter and the cap J should beperfectly tight,pret'erably being so made by grindmg.

The inlet-pipe G being put into conimunieation with a properwatersupply, when the piston is reciprooated the water is drawnalternatel y through the valves a I) and forced alternately through thevalves 70 70 into the chan1- her I, and thence through the outlet n.

The piston-rod D is designed to be connected with the piston-rod of areciprocating engine v of sutticient length of stroke to actuate thepiston of the pump.

v(last upon the sides of the pump-barrel are cars 0, to which arepivoted one end of the bolts s, the opposite ends of which are threadedand provided with a nut, t, and the edges of the cap J areprovided withsimilar slotted ears,

0, and the bolts 3 are of the proper length, so 5 that when the cap isin place the free ends of the bolts are engaged with the ears of thecap,

as shown in Fig. 4, when the nuts t are tightened to hold the partsrigidly together. To remove the cap it will be noticed it is not nec-Ioo essary to remove a bolt, but simply loosen the nuts and slide theupper ends of the bolts out of engagement with the ears in the caps.

It will further be noticed that by removing the cap J and thevalve-chamber I access can be had to all parts and both chambers of thepump-barrel without the necessity ot'removing the heads of the barrel assuch are ordinarily constructed.

What I claim as my invention is- 1. In apump, the barrel A, divided intotwo chambers, H H, by a diaphragm, E, through which the pistonreciproeates, in combination with aremovable top closing, the upperopenings ot'the chambers H H, whereby access can be had to theinlet-valves in each of said chambers without removing either head ofthe barrel, substantially as described.

2. In a pump, the barrel A, provided with a diaphragm, E, forming twochambers, 11 H, in combination with a removable top closing theupper'openings of said chambers, a stutting-box secured in the diaphragmE, and the piston G, substantially as and for the purpose specified.

I, closing the upper openings of the chambers H H, the separable cap J,closing the valvec hamber I, and boltss s, pivoted between lugs 0 0 ofthe barrel A, and engaging with lugs 0 0 ot' the cap for detachablysecuring the barrel A, chamber I, and cap J together, substantially asand for the purpose described.

WILLIAM H. CLOUD.

Witnesses:

H. S. SPRAGUE, E. SoULLY.

